英语语法分析

Lutetia has been a mystery for many years.

小行星Lutetia许多年来一直是个迷。

The images confirm that Lutetia is an elongated body, with its longest side around 130km.

这些照片证实，卢滕西亚是一个拉长的机构，其最长边约130公里。

This is Lutetia, a 100km-long asteroid visited in July by the European Space Agency’s craft Rosetta.

这就是“司琴”，一颗直径约100公里的小行星。 今年七月，欧洲太空总署发射的航天器——罗塞塔号近距离飞越了这颗星。